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AM60B Magnesium vs. C70700 Copper-nickel

AM60B magnesium belongs to the magnesium alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AM60B magnesium and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
73
Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 11
39
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
46
Shear Strength, MPa 140
220
Tensile Strength: Ultimate (UTS), MPa 230
320
Tensile Strength: Yield (Proof), MPa 130
110

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 620
1120
Melting Onset (Solidus), °C 540
1060
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 61
59
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 72
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
34
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 990
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
51
Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 38
10
Strength to Weight: Bending, points 50
12
Thermal Diffusivity, mm2/s 37
17
Thermal Shock Resistance, points 14
12

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Copper (Cu), % 0 to 0.010
88.5 to 90.5
Iron (Fe), % 0 to 0.0050
0 to 0.050
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 0.5
Nickel (Ni), % 0 to 0.0020
9.5 to 10.5
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.22
0
Residuals, % 0
0 to 0.5